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Training

Customized Engineering Training Courses

Programvaruhandledning

FLAC3D 6.0 Interactive Model Pane

FLAC3D 6.0 Model Generation using the Building Blocks and Geometric Data Sets

FLAC3D 6.0 Easily Add Structural Support

Artiklar och presentationer

Bergmekaniska analyser för Bolidens djupförvar vid smältverket Rönnskär

Rock mechanical analysis for Boliden's deep repository at the Rönnskär smelter (presentation in Swedish)

Elastic Properties of Fractured Rock Masses With Frictional Properties and Power Law Fracture Size Distributions

We derive the relationships that link the general elastic properties of rock masses to the geometrical properties of fracture networks, with a special emphasis to the case of frictional crack surfaces.

We extend the well-known elastic solutions for free-slipping cracks to fractures whose plane resistance is defined by an elastic fracture (shear) stiffness ks and a stick-slip Coulomb threshold.

Flowback Test Analyses at the Utah Frontier Observatory for Research in Geothermal Energy (FORGE) Site

Injection testing conducted in 2017 and 2019 at the Frontier Observatory for Research in Geothermal Energy site in Utah evaluated flowback as an alternative to prolonged shut-in periods to infer closure stress, formation compressibility, and formation permeability. Flowback analyses yielded lower inferred closure stresses than traditional shut-in methods and indicated high formation compressibility, suggesting an extensive fractured system. Numerical simulations showed rebound pressure is not necessarily the lower bound of minimum principal stress. Stiffness changes can be identified as depletion transitions from hydraulic to natural fractures. The advantage if flowback is reduced time to closure.